Shower head



FIG. 1 is a front perspective view of our new design for a shower head;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof, the right side, top and bottom being the same as the left side; and,

FIG. 4 is a rear view thereof.

The broken line showing in FIGS. 1, 2 and 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shower head, as shown and described. 